Apparatus for treating with carbonic oxid nickel ores or other material containing nickel.



wmlal Q g No. 865,969. v PATENTBD SEPT. 10, 1907.

G. LANGER. APPARATUS FOR TREATING WITH GARBONIG OXID NICKEL .ORES OROTHER MATERIAL CONTAINING NICKEL.

APPLICATION rmnn APB.16,1906.

; UNITED STATES.

PATENT OFFICE.

QARL LANGER, OF GLYDAOH, ENGLAND, ASSIGNOR TO THEHMOND NIGKEL COMPANY ILIMITED, OF WESTMINSTER, ENGLAND.

APPARATIl'S FOR- TREATING WITH CARBONIO OXID NICKEL OREB OR OTHERCONTAINING Specification of Letters Patent.

fatented Sept. 10, 1907.

. Y Y a Original application filed July 5. 1906, Serial No- 268,869.Divided and this application filed April 16,1906. Serial No. 812,010. 1

To all whom it may concern:

Be it known that I, Cant LANGER, residing at Ynys-' this is a division.

In specification to U.- S. Patent No. 551220 dated 10th December 1895 isdescribed the now well-known process for obtaining nickel which consistsin heating oxid of nickel, or material containing that oxid, in areducing gas at a temperature between 350 C and 500 0, allowing thematerial tocool and subjecting it to the action of a stream of carbonicoxid gas whereby the nickel is volatilized in the form of nickelcarbonyl. Now it is stated in the said specification that 50 C, is thetemperature preferred by the inventor as that at which the treatmentwith carbonic oxid should occur,

but that if the operator prefers to allow the reduced material to coolto ordinary atmospheric temperature, he can do so, inasmuch as it ispossible to work at temperatures from 0 C, to 150C.

varying and low yields of nickel carbonyl have been obtained, and as aresult I have discovered that this is because the aforesaid statement asto the permissible range of temperature is very much too wide whenworking at atmospheric pressure. So far from its being possibleto workat any temperature within the range of 0 C to 150 C at atmosphericpressure, my

experiments have proved that it is essential to keep the temperature ofthe material between 40 C and heat evolved by the reaction raises thetemperature.

of the material locally, so that for maintaining the temperature betweenthe limits stated it is impossible to rely only upon natural radiationof this heat from the apparatus.

My invention relates to apparatus wherein the material under treatmentwith carbonic oxid is kept at a temperature between 40 and 50 C, bymeans of artificialcooling. lhis may be done in a variety of ways.Seeing, however,-that the adjustment of temperature is chiefly requiredlocally' in the apparatus, I prefer to pass or allow to pass a fluid,the function of which will generally be to cool the material so as tocounteract the heat evolved by the reaction, through passages in theapparatus, around or over which passages the material under treatment ismoved.

Toillustrate the preferred form of my invention I will describe anapparatus which is an adaptation for the purposes of my invention of thevolatilizer described in specification No. 551220.

In the accompanying drawings Figure 1 is an elevation of thevolatilizer, partly in section, Fig. 2 is a vertical section and Fig. 3a plan of one chamber, drawn to an enlarged scale. i

The general construction of the volatilizeris similarto that describedin the said specification, that is to say it consists of a number ofshort vessels a preferably cylinders superimposed on each other. andconstituting a number of chambers divided by a partition b and having abottom c. The material is caused by 'stirrers 'd carried by a rotatingshaft e to travel over the'partition b from the center to thecircumference whence it falls through openings f on to the chamberbottomc, where it is made to travel by the stirrers from the circumference tothe center, whence it falls through the openings 9 onto the partition ofthenext lower chamber. In practicing the process on a manufacturingscale According to this invention the partitions b are made hollow, inthe instance shown' they are made of two plates making joint at b and bwith the aid of suitable packing, and having a space b between them intowhich flange k of the cylinder a rests on the edge of the plate 'i p anda suitable packing makes a tight joint between the rims c and 'i andbetween the flange k and the plate 1'. A space I is thus formed belowthe bottom 0 into which water or other suitable liquid or gas may passthrough a pipe 11. (Fig. 1) and a channel m to flow out again spaces insuch quantity that the material under treatment is maintained at themost suitable temperature.

The partitions b and the bottoms 0 being made up of separable members,as shown in Figs. 1 and 2', are easily cleared of any deposit that mayoccur from time to time in the passages formed therein.

Having thus described the nature of this invention and the best means Iknow of carrying the same into practical effect, I claim:-

1. An apparatus for treating with carbonic oxid finely divided nickel ormaterial containing iinely divided nickel, comprising superimposedchambers each divided by a partition and having a bottom, the partitionsof the several chambers being composed of two plates having a spacebetween them for the reception of liquid or gas, and the bottoms alsobeing hollow and the passages therein having communicating means withthe exterior of. the apparatus, the partitions and bottoms being made upof 'separable members to permit cleaning 01! the passages therein.

:3. Apparatus for treating with carbonic oxid finely divided nickel ormaterial containing iinely divided nickel, comprising superimposedchambers, a bottom to each chamber, an annular ilangc on the undersurface of the said bottom, a plate between each chamber and that nextbelow it, an annular flange on the upper surface of the said plate incontact with the flange on the under surface of the bottom of thechamber next above the said plate, passages leading through the wall ofeach chamber to the space between the bottom of the chamber and theplate next below it, a shelf in each chamber, concentric annular flangeson the upper surface of said shelf, a plate resting on the said annularflanges of the shelf in each chamber, and passages leading through thewall of each chamber to the space between the said shelf and the plateresting thereon.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CARL LANGER. Witnesses:

Joan WILLIAM i'acxa, Gsonon ROWLAND SAusn'nns.

